(19)
(11) EP 3 038 075 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.10.2016 Bulletin 2016/40

(43) Date of publication A2:
29.06.2016 Bulletin 2016/26

(21) Application number: 15397543.8

(22) Date of filing: 15.12.2015
(51) International Patent Classification (IPC): 
G09F 3/02(2006.01)
G09F 3/00(2006.01)
 G09F 3/03(2006.01)
G09F 3/10(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(30) Priority: 23.12.2014 US 201414580276

(71) Applicant: UPM Raflatac Oy
33310 Tampere (FI)

(72) Inventors:
  • Pietarinen, Markku
    33300 Tampere (FI)
  • Herranen, Jari
    33210 Tampere (FI)

(74) Representative: Tampereen Patenttitoimisto Oy 
Visiokatu 1
33720 Tampere
33720 Tampere (FI)

   


(54) SEALING LABEL


(57) A sealing label suitable for sealing a package made of varnished cardboard comprises:
- a carrier layer, and
- an adhesive layer,
wherein the thickness of the carrier layer, the material of the carrier layer, and the composition of the adhesive layer have been selected such that:
- a minimum deformation force (FLIM) of the label is smaller than a first breaking force (FC) needed to break the cardboard material of the varnished cardboard,
- a minimum detaching force (FA) of the label is greater than the first breaking force (FC), and
- the minimum detaching force (FA) is smaller than a second breaking force (FBRK) needed to break the label,

wherein the first breaking force (FC) is a first pulling force which causes breaking of the cardboard material in a situation where the label is separated from the varnished cardboard by pulling the label with said first pulling force, and the minimum detaching force (FA) is a second pulling force which is needed to separate the adhesive layer of the label from the surface of the varnished cardboard in a situation where the label is pulled with said second pulling force.







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